Frymaster UHC-HD manual Shorted Triac, Heater Plate, Display Meanings

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Cabinet Service Procedures

suspect heater. Note: Line voltage is only seen when the row is calling for heat.

2.Check for line voltage between the power input terminal and the terminal block.

3.Check for +5VDC at the power-in terminal and the terminal block for the power supply.

NOTE: After testing, reconnect all connections to their original positions.

2.5.4 Display

1.Remove power from unit.

2.Connect the ribbon cable from a suspect display to the connector of a properly working display to isolate the problem to the display or the distribution board.

3.Reapply power to cabinet.

2.5.5 Shorted Triac

Fig. 6: Distribution board shown with display cables removed.

1.Turn the suspect row off and measure

voltage between the suspect heater lead on the distribution board and the terminal block. With the row off, there should be no line voltage. If the triac is shorted, you will measure AC line voltage. If the triac is half waving, you will get DC voltage of approximately one-half the line AC voltage.

2.5.6 Heater Plate

1.Disconnect power to the cabinet. Remove side and top panels. Disconnect the black heater lead and the RTD leads (brown and red) of the suspect plate from distribution board. Measure resistance of the heater from the black lead to any terminal on the white terminal block. Resistance should be 140-150 ohms.

2.Measure resistance across the brown and red RTD leads. Resistance must be within a range of 104-148 ohms. Resistance at room temperature is approximately 107 ohms. See chart on Page 2-4for resistance at different temperatures. If either resistance is incorrect, replace the heater plate.

2.5.7 Display Meanings

1.ROW TEMP HIGH OR ROW TEMP LOW and no audible alarm. This is normal when the row is changing temperature in association with a menu change.

2.LLLL means the RTD indicates a temperature below 50°F (10°C). Unit will automatically heat at 20 percent until temperature is above 50°F (10°C), then operate normally.

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Contents UHC 8196606* 24-Hour Service HotlinePage Table of Contents Theory of Operation Functional DescriptionStart Up Indicators and Test Points Updating Software/Capturing Configurations Cabinet Service ProceduresCopy from UHC to USB Switching Heater Plates Off Individually Placing the cabinet in Service ModeAdjusting Display Brightness Readdressing the Cabinet Circuit Board LED Diagnostics Accessing the Electronic Components2 RTD Tests Power SupplyDistribution Boards Shorted Triac DisplayHeater Plate Display MeaningsRemoving/Replacing Bezels Replace Heater Plate/RTD Removing a RowHeater plate slides from the insulation Cabinet Troubleshooting Symptom Possible Causes Tests Cabinet Parts Parts Lists, Exploded ViewsComponent Shelf Part Number Wiring Diagram, Delta Power, L1-L2 UHC-HD, WYE Power, L1-N Service Hotline

UHC-HD specifications

The Frymaster UHC-HD is a high-performance commercial fryer designed to meet the demanding needs of modern kitchens. Key to its appeal is the innovative Ultra High Efficiency (UHC) technology, which allows this fryer to achieve exceptional cooking results while minimizing energy consumption. The UHC-HD model is built for efficiency, making it an ideal choice for busy restaurants, fast-food establishments, and other foodservice operations.

One of the standout features of the Frymaster UHC-HD is its dual-zone frying capability. This design facilitates optimal cooking by allowing users to cook multiple products simultaneously while maintaining the integrity of flavors. With the ability to manage separate oil zones, operators can minimize flavor transfer, ensuring that chicken doesn't taste like fish and vice versa. This feature is particularly beneficial during peak hours when demand for diverse menu items is high.

Additionally, the Frymaster UHC-HD is equipped with a state-of-the-art filtration system that enhances oil life and improves food quality. This built-in filtration system continuously circulates and filters the oil, removing impurities and extending its usability, resulting in cost savings on oil purchases and reduced waste. The fryer also features a simple, intuitive user interface that provides operators with real-time data on oil quality and temperature, allowing for precise control over the frying process.

Another significant benefit of the UHC-HD is its durability and ease of maintenance. Constructed from high-quality materials, this fryer is designed to withstand the rigors of daily use. The fryer’s design allows for easy access to components, making routine cleaning and maintenance straightforward. This focus on durability not only enhances the fryer’s lifespan but also helps ensure consistent cooking performance.

The Frymaster UHC-HD also incorporates advanced safety features. The enhanced safety mechanisms include temperature limiters and automatic shut-off functionalities, which minimize the risk of overheating and accidents in the kitchen. This attention to safety is critical in fast-paced cooking environments where operators must prioritize efficiency without compromising on safety.

In conclusion, the Frymaster UHC-HD stands out as a premier choice for anyone looking to elevate their frying capabilities. With its innovative technology, energy-saving design, and user-friendly features, it is a perfect fit for a variety of foodservice applications. Whether frying a batch of crispy chicken or perfectly golden fries, the UHC-HD combines performance and efficiency, making every frying experience exceptional.
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